Download or read book Reclamation of Alkali Soils written by Clarence Wilbur Dorsey and published by . This book was released on 1906 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reclamation and Use of Alkali Soils written by Wilbur Lovis Powers and published by . This book was released on 1946 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Saline and Alkali Soils Diagnosis Reclamation and Management written by S.K. Gupta and published by Scientific Publishers. This book was released on 2019-05-11 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "alkali soil"is employed to refer to soils that have a high exchangeable-sodium-percentage; and "saline soil" is used in connection with soils having a high value for the electrical conductivity of the saturation extract. This handbook was first issued in multilithed form in 1947, and it has been widely distributed in this country and abroad. The handbook is intended primarily as a practical guide for those who are confroted with soil, plant, and water problems involving salinity and alkali The first five chapters provide a basis for the evaluation and interpretaion of measure-ments The procedures and measuring methods given in chapters 6,7, and 8 are those with which the Laboratory has had experience, and they are believed to have general applicability in the diagnosis and improvement of saline and alkali soils. This handbook is the result of the combined efforts of the entire staff of the salinity Laboratry.
Download or read book The Reclamation of Alkali Soils written by Walter Pearson Kelley and published by . This book was released on 1937 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salt Affected Soils Reclamation And Management written by S. K. Gupta and published by Scientific Publishers. This book was released on 2014-01-01 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will be immensely useful to researchers, teachers and students, officers of command area development authorities, extension workers and above all the farming community of India. Any progress made in land reclamation programs with the help of this book will give us immense satisfaction.
Download or read book Reclamation of Saline and Alkali Soils Under Irrigation written by Aleksandr Andreevich Sidʹko and published by . This book was released on 1988 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hungarian Alkali Soils and Methods of Their Reclamation written by Alexius A. J. von Sigmond and published by . This book was released on 1927 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Reclamation of Alkali Soils Classic Reprint written by Walter Pearson Kelley and published by Forgotten Books. This book was released on 2017-11-11 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Reclamation of Alkali Soils However, counteracting forces are often present. For example, if the soluble salts which accumulate in the soil or are applied as constituents of the irrigation water are composed in considerable part of calcium compounds, the adverse chemical and physical edects just alluded to fail to materialize to any great extent. Under such conditions soluble salts do not produce excessive chemical changes in the clay and humus of the soil.' Where this is the case, mere drainage and leaching will suffice to produce complete reclamation of the soil. An example of this type of soil condition is found in the Imperial Valley. As Thomas) has shown, the excessively saline soils of certain parts of the Imperial Valley can be reclaimed readily and be caused to produce large yields of crops by the simple expedient of drainage and leaching without applying any chemical treatment whatever. These soils contain relatively large quan tities of soluble calcium salts as well as large amounts of sodium salts. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Reclamation of Alkali Soils Classic Reprint written by Clarence Wilbur Dorsey and published by Forgotten Books. This book was released on 2017-10-28 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Reclamation of Alkali Soils The term alkali, as commonly used in arid and semiarid regions, refers to accumulations of water-soluble mineral salts. The prin cipal substances composing alkali consist of chlorides, sulphates, and carbonates of sodium, magnesium, and calcium, or a mixture of two or more of these salts. Other substances may be found, but they are relatively unimportant. Generally speaking, alkali consists of three principal ingredients - sodium chloride or common salt sodium sulphate or Glauber's salt, and sodium carbonate or sal soda. Alkali is commonly spoken of as white alkali and black alkali, depending on the appearance of the incrustations caused by excessive accumula tion on the surface. Usually when large quantities of sodium sul phate or sodium chloride accumulate on the surface its presence is marked by a white incrustation, hence the term in common use white alkali. Since sodium carbonate, when present in considerable quantities, corrodes the vegetable matter of the soil, forming a brown or dark stain, it is called black alkali. As calcium chloride a com paratively harmless salt, may likewise impart a dark stain to the soil, it is evident that this classification is not, altogether satisfactory, though it will probably always continue in local use. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Handbook of Saline and Alkali Soils written by and published by . This book was released on 2019 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reclamation of the Fresno Type of Black alkali Soil written by Walter Pearson Kelley and published by . This book was released on 1928 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alkali Soils written by Walter Pearson Kelley and published by . This book was released on 1951 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reclamation of Alkali Lands in Egypt written by Thomas Herbert Means and published by . This book was released on 1903 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Reclamation of Alkali Soils written by Henry O. Parsons and published by . This book was released on 1935 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alkali land reclamation written by R. S. Tripathi and published by Mittal Publications. This book was released on 2009 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Indian context.
Download or read book Genesis and Management of Sodic Alkali Soils written by S.K. Gupta and published by Scientific Publishers. This book was released on 2017-10-01 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land and water, the two crucial natural resources for agriculture, are decreasing as a result of burgeoning population of the country. At the same time, various forms of degradation are taking a toll on the productivity of these resources so much so that large areas have been taken out of plough. Current assessment reveal that already 6.73 million ha area has gone out of cultivation because of excessive salts or high sodicity and this area is likely to expand to 20 million ha by 2050 because of the faulty irrigation and drainage water management practices being adopted in irrigation commands. Of the current affected area, more than 50% is sodic in nature, which requires some kind of chemical amendment for reclamation. While our knowledge and understanding of the causes, nature and harmful effects of sodic soils have tremendously increased, availability of gypsum on account of environmental problems on its mining has caused concerns. Apparently, there is a need to push for other amendments especially the industrial wastes and publish the information in practical terms for various stakeholders. This book is an attempt in this direction. Taking into account the widely varying needs of the clients, the chapters of this book have been organized to include history, origin and genesis of sodic lands, basic principles of diagnosis, nature and properties of sodic lands, amendments, reclamation package and alternate land management. Since sodic water irrigation is one of the factors in the formation of sodic lands, a separate chapter deals with this issue highlighting the extent and distribution, chemical characteristic and management options for the use of sodic water. The economic analysis procedures and socio-economic issues of sodic land reclamation are included in a separate chapter with appropriate case studies. Since latest scientific information on new technologies with case studies is included, we believe that this book is an improvement over the existing books and is a useful addition to the literature on this subject. In our view the information contained in this book would be handy to field practitioners in the Government Departments and NGOs to plan and undertake large sodic land reclamation projects. Since the basic principles and practices have been very well elucidated, the book can be used as a text book in agricultural and engineering colleges. It can also be used as a source material in training programs being organized by various scientific organizations. We believe that the book would prove to be a handy reference resource to all those interested in sustainable irrigated agriculture for the food and nutritional security of the nation.
Download or read book Soil and Water Problems and Research Needs of the West written by National Reclamation Association. Agricultural Research Committee and published by . This book was released on 1952 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
